Scrub oranges and cut into chunks to fit into meat grinder or food processor. Grind together cranberries and oranges (with peels). Add raspberries, Jell-O, water and orange juice and stir well. Chill for several hours. Then scoop into hollowed-out orange halves and serve.

Optional: Chopped celery and walnuts can be added for a different texture and taste, but add walnuts at last minute so they don't absorb too much moisture.